Gas-burner.



No, 864,593. PATBNTED AUG. 2'7, 1907.

' G. S. ANDREWS. I

GAS BURNER.

APPLICATION FILED DBG.26. 1906.

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PATENTED AUG. 2'7, 1907.

G.- s. ANDREWS.

GAS BURNER.

APPLICATION FILED 1320.26. 1906.

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GEORGE S. ANDREWS, OF BUTLER, PENNSYLVANIA.

GAS-BURNER.

Specification of Letters Patent.

Patented Aug. 27, 1907.

Application tiled December 26,1906. Serial No. 349,566.

To atl lwhom it may concern:

Be it known that I, GEORGE S. ANDREWS, a citizen of the United States, and a resident oi Butler, in the county oi' Butler and State of Pennsylvania, have invented a new and Improved Gasl'iurner, oi which the lollowing is a Iull, clear, and exact description.

This invention relates to certain improvements in incandescent gas burners, and relates more particularly to the c mstructi ni and 'means ior supporting the various parts going to make up said burners.

The object oi the invention is to so construct and connect the various parts that any oi them may be removed vlor the purpose of cleaning or to permit the insertion of new parts without interfering with or removing the adjacent and coacting parts.

More specifically, the object oi' my invention is to provide means whereby the mixing tube may be removed independent oi the base mantle, and whereby the mantle may be removed independent oi the globe or shade.

The invention consists in certain features of construction and combination of parts, all o which will be iully set iorth hereinaiter an d particularly pointed out in the claims.

. Jteler-ence is to be had to the accompanying drawings loi-ming a part oi this specification, in which similar characters ot reierence indicate corresponding parts in all the figures, in which Figure l is a perspective view of a device embodying my invention g Fig. 2 is a plan view, the upper portion ol the device being broken away, Fig. 3 is a vertical longitudinal section; Fig. 4 is a view similar to Fig. 3, but showing the gas delivery nipple moved out oi the path oi' the mixing tube and mantle support, the latter being partially removed; Eig. 5 is a sectional detail showing the means for securing certain parts together; Fig. 6 is a vertical longitudinal section through a modified iorm of mixing tube; Fig. 7 is a side elevation showing a medi f 'red construction for permitting' the removal oi the gas delivery nipple from the downward path of the mixing tube and mantle support; and Fig. S is a vertical section on the line 8 8 of Fig. 7.

In connection with my improved gas burner, I provide a fixture comprising a gas delivery conduit l0 of any suitable character and supported in any suitable manner. Carried by this conduit are two separate and independent parts, one ol which, the upper, comprises the mixing tube, the mantle support and the globe or shade support, while the other, the lower, comprises the gas delivery conduit, the delivery nipple and means whereby the quantity oi air admitted to the mixing tube may be regulated.

To facilitate the separation oi the various members of the upper part, I construct either one or both of the parts movable in respect to the other.

' tions.

In Figs. l, 2, l and 5 I have illustrated the lower part as comprising a curved gas delivery conduit Il, rigidly secured to the end ol a turning plug I 2 mounted to rotate within a head 13 rigidly secured to the fixture 10. Within the head is also mounted a turning plug or cock Ill, by means ot which the flow ol' gas .irom the fixture to the delivery conduit ll may be normally controlled. The turning plug I2 is preferably conical iu lorm and held in place in any suitable manner, as, for instance, by a screw bolt l5 and washer 11,6. The axis oi the turning plug is preferably in a vertical line, and the conduit ll is secured to the lower open end oi' the turning plug. lhe conduit Il carries on its lower or outer end a head 17 having a passage theretlnough communicating with said gas delivery conduit and provided, it desired, with a small turning plug or cock 18. The head 17 terminatos in an upwardly directed gas delivery nipple 19 adapted to direct the flow of the combustible gas to the center ol the mixing tube supported directly above the same but iiulependently thereof. As the turning plug l2 is ireely rotatable within the head 13 and as the conduit Ill. leading from the bottom thereof is curved outward, it is evident that the delivery end oi the conduit, or in other words, the nipple I9, may be moved in a lateral direction to bring it entirely out from beneath the mixing tube and the remainder ol the burner. For limiting the position oi' the nipple '19 and insuring the positioning et said nipple directly below the center ol' the mixing tube, I may provide any suitable stop or projection operating in conjunction with the turning plug l2. This may, it desired, take the iorm el a small screw 20 carried by the head 13 and engaging with stops on the plug l2. In order to bring the gas delivery nipple I9 out from beneath the remaining parts oi the burner, it is evident that it may be moved in other directions than in a horizontal one.

In Figs. 7 and 8 a slightly modified form ot construction is disclosed in which the turning plug 12rL within the head lf3L has its axis in a horizontal rather than a vertical line. The gas delivery conduit Ill. secured to said turning plug is curved so as to bring the head 17 and delivery nipple i9 directly below the mixing tube as in the lorm tirst described, but in order to move the deliver'y nipple from beneath the other parts of the burner, it is moved downward and backward, as indicated in dotted lines in Fig. 7. It is evident that the conduit IlfL arid trii'ning plug 12 may be of various forms, it only being essential that the nipple 19 be normally supported directly below the center of the mixing tribe and entii'ely independent thereof and be rriovable to a position ontfrorn beneath said tribe, whereby the latter' may be moved downward to separate it from the parts which normally siippor't the same.

Supported by the head v13 of the fixture 10 and entii'ely independent of the rneinber's coiistitriting what has been designated the lower part is means for supporting the mantle, nrixiirg tube and globe or shade. This means preferably takes the form of a ring 21 carried by an ar'nr 22 preferably secured to the top or' upper' surface of said head. As shown, the arm is rigidly secrir'ed by means of scr'ews 23, but it is evident that one of these screws may, if desired, be removed and the ring 21 moved laterally about the other screw as a pivot. i

Secured to the outer' srirfaee of the ring 21 are a plurality of r'ests or supports 24 for any suitable form of globe or shade, not shown, and extending through the ring arid siippoi'ted upon the inner surface thereofl is a shell 25 serving to carry the mixing tube and indir'ectly support the mantle. The shell 25 preferably comprises a cylindrical portion 2G adapted to fit the iiurer' siii'face of the ring 2l, and is provided with a bead or flange 27 to limit the upward movement of said shell through said ring. For secrir'ing the shell witlriir the r'ing 21, I provide either the ring 21 or the cylindrical portion 2G of the shell with a bayonet slot 2S. Preferably this slot is in the cylindrical portion 26 and coacts with projections extendingl inward from the srir'face of the r'ing 21. ln the constr'riction illus trated, this projection takes the for'm of a small screw 29 having a washer 3() rigidly secured to the inner end thereof. ly moving the shell upward in the r'iirg 2l. and then slightly rotating the shell, the screw 29 may be brought to the inner' end of the slot 28. By then turning the sci'ew to draw the washer' 30 into fir'm engagement with the inner srir'face of the ring 2G, the two pai'ts may be held firmly in engagement with each other and liability of their' accidental separation r'endered impossible.

Extending upward from the r'ing 2G and integral therewith are a plurality of bars or legs 31 connected at their ripper' ends to a tube 32. This tube serves as a guide for the upper end of the mixing tube which extends therethrough, and also serves as a support for the ring 33 of the mantle. The tribe 32 is provided With a Harige or shoulder 34 to limit the downward movement of the ring 33, and the latter carr'ies outwardly projecting arms 35 sripporting a wire 3G from which the mantle 37 is suspended, the lower end of said mantle being in engagement with the upper end of the ring 33.

Within the shell 25 and extending upward from the lower end thereofl to the inside of the mantle 37, is the nrixing tribe 38. This tribe is preferably cylirrdrical in form and at its lower' end engages with and is supported by the lower end of the shell. The shell pr'eferably terminates in a cylindrical flange 39 fitting the outer side of the tribe, and means are provided, as, for instance, a set screw 40, for holding the mixing tribe within the flange 39. The lower' end of the mixing tribe is provided with an annular Hange 41 engaging with the lower end of the shell and serving to limit the ripward movement of said tube. The ripper' end of the mixing tribe extends through the tribe 32 and terminates adjacent the lower end of the mantle 37, said upper end of the tribe supporting a screen 42 held in place in vany suitable manner but preferably by engagement with the inner' surface of an outwardly directed bead 43.

The mixing tribe is preferably of the form illustrated in Figs. l, 3 and 4, brit'- various modified forms of construction may be employed. In Fig. 6 one of such modifications is illustrated, wherein the mixing tribe 33a is supported upon the oritwardly directed flange 44. of a supporting collar 45, which collar' is secured to the flange 39 of the shell and also serves to support a-screen 4G by means of suitable wire standards 47. In each case the lower' end of the mixing tube is entirely open to the atmosphere, and wh en in use is supported directly above the delivery end of the nipple 19. The gas escaping from said nipple passes upward through the mixing tube and air is admitted from the outside to become thoroughly mixed as the two pass upward through the tribe. The mixture is ignited upon the upper surface of the screen 42, and the intense heat produced at this point serves to r'ender' the mantle luminous. In order to regulate the quantity of air entering the lower end ofthe tribe, I provide the nipple 19 with an air regulator 4S, preferably in the form of an inverted cone screw-threaded upon said nipple. By rotating this corre, the distance between its outer edge and the lower' end of the mixing tribe may be controlled at will and the size of the air inlet opening readily regulated. The air regulator and the mixing tribe are supported entirely independently of each other', and thus the space between the two is left free and rini'estricted, but, at the same time, capable of being readily controlled.

The improved construction above described possesses very rnairy advantages over those devices commonly employed. i

When it is desired to remove the mixing tribe to clean or replace the screen 42 or for any other prii'pose, it is entirely iinnecessar'y to remove the globe, shade, mantle, or any other part, save the gas delivery nipple. This may be readily swung either' to one side or downward, as shown in Figs. 7 and S, and by loosening the screw 40 the mixing tribe may be readily removed from the lower end of the shell. The support for the mantle may be likewise removed without disturbing the shade or globe r'esting on the supports 24, and this is accomplished by merely loosening the screws 29 and rotating the shell 25 to unlock the bayonet joint. The shell carrying the mixing tribe and mantle may then be separated from the remaining parts by moving it downward through the supporting ring 21, as indi cated in Fig. 4. This permits of the removal of the broken mantle and the insertion of a new one in a very short space of time and without taking the entire device apart.

Having thus described my invention, I Claim as new and desire to secure by Letters Patent:

li A gas burner, comprising a plurality of parts, one ol said parts including a supporting ring. a shell detachably secured thereto. and a longitudinally movable mixing tube detaehably secured to saidy shell, and the other ol' said parts including a gas delivery nipple, one ot said parts being movable in respect to the other to bring the mixing tube and delivery nipple out; olf alinement and permit the removal of the tube or the shell.

2. A gas burner comprising a pli'irality ot parts. one ol said parts including a supporting shell, and a mixing tube having` one end ther detachably secured to said shell adjacent one end ol the latter, and the other ot' said p: 'ts including a gas delivery nipple, one ot said parts b( ng movable in respect to the other to permit the longitudinal movement: ot the mixing tube.

Il. A gas burner. comprising a supporting ring. a shell detachably stured thereto and removable lrom the under side thereot', a mixingtube detachably secured to said shell and removable :Irom the under side ol the latter, and a gas delivery nipple normally supported in alinement with the mixing tube but movable out; ot alinement therewith to permit the removal ol the tube or the shell.

-l. A gas burner, comprising a supporting ring, a shell detachably secured thereto, a, mixing tubecarried by said shell. and a gas delivery nipple normally .supported in alinement with the tube but movable out oi alinement therewith to permit. the longitudinal movement and re moval ol the shell and tube.

5. A gas burner, comprising a plurality of parts sup ported independently ot' each other, one o1.` said parts including :v supporting member, a shell detachably secured thereto, a mixing tube carried by said shell, and a gas delivery nipple normally supported in alinemenl; with said tubel one olf said parts being movable in respect to the other to bring the mixing tube and nipple out oi alinemeut.

(i. A gas burner, comprising a plurality ol parts supported entirely independently ot each otlie1','one of said parts including a longitudinally movable mixing tube and the other olz said parts including` a gas delivery nipple and an air regulator, one ol said parts being laterally 'movable so as to bring the mixing tube and delivery nip4 ple out oli alinement and permit the longitudinal movement olf the mixing tube, and the air regulator being longitudinally movable in respect to the nipple and mixing tube to control the size ot' the inlet: to the latter.

T. A gas burner, comprising an upper part including a mixing tube, a mantle and a mantle support, and a lower part, comprising a gas delivery conduit, a delivery nipple carried thereby and supported directly below the mixing tube but entirely indepemlently thereot`- and an air regulator, said lower part being movable in respect to the upper part to bring the delivery nipple out: ol alinemeni: with the mixing tube, and said air regulator being independently movable in respect to said mi ing tube.

H. A gas burner, comprising an upper part including' a mixing tube, mantle and a mantle support, a lower part comprising a gas delivery conduit, a delivery nipple supported directly below the mixing tube but entirely inde pendent thereol'. said lower part being laterally movable in respect to the upper pal't, and means whereby the lateral movement ol said lower part controls the supply ot gas thereto.

li. A gas burner, compri ingl a plurality of parts supported independently oL each other, one oi said parts including a mixing tube and the other ot' said pai includ inf" a gas delivery nipple normally supported in alinement with said mixing tube. and means whereby the movement; ol one ol said )arts to bring the delivery nipple and mixing tube out ot' alinement shuts oil the supply ol gas to said nipple.

lo. A gas burner, comprising a plurality of parts supported independently of each other, one et said parts in eluding a longitudinally movable mixing tube and the other ot' said parts including a gas delivery nipple, one oi said parts being movable to bring the delivery nipple and mixing tube out ol alinement; and permit the removal ol` the mixingtube. and means whereby said movement oi' one ol' the parts controls the supply oi` gas to said delivery nipple. l

1l. A gas burner. comprising an upper parl: and a lower part, one ol said parts being movable in respect to the other, the said upper part; comprising a supporting ring. a mixing lube, a mantle, and a mantle support, and the said lower part comprising a gas delivery conduit. a delivery nipple and an air regulator, said nipple and regulator being supported directly below the end ol' the mixing lube but; independently thoreol.

l2. A gas burner, comprising an uppeiI part and a lower part, one ot' said parts being laterally movable in resperi: to the other, the said upper part comprising a sul port ing ring. a mixing' tube. a mantle, and a mantle support, and the said lower part, comprising a gas delivery conduit, a delivery nipple and an air regulator, said nipple and regulator being supported directly below the end ol the mixing tube but independently thereof,

ll. A gas burner, comlfirising an upper part, including a stationary supporting ring, a, mixing tube supported thereby and removable from the lower side thereof, and a lower part, including gas delivery nipple supported directly below said mixing tube and movable out ot' the downward path of said mixing tube.

l-l. A gas burner, comprising an upper part, including a stationary supporting ring, a mantle and mantle support, a member carried by said ring and carrying said mantle and mantle support, said member being detach-ably con nected to said ring and removable from the lower side thereof, and a lower part, including a gas delivery nipple supported directly below said member but independently thereof and movable out oi' the downward path oi said member.

l5. A gas burner, coml'irising an upper part, including a supporting ring, a shell carried thereby, a mantle support, and a mixing tube carried by said shell, Said shell beingdownwardly removable in respect; to said ring, and said mixing tube beingl downwardly movable in respect to said shell, and a lower part, includingl a gas delivery nipple supported directly below said mixing tube but: independently thereof, one ot said parts heilig movable in respect to the other, whereby the shell or mixing tube may be removed from the supporting ring.

1G. A gas buriier, comprising an upper part, including a sul'iporting ring, a shell carried thereby, a mantle sup` port, and a mixing` tube carried by said shell, said shell being downwardly removable in respect to said ring, and said mixing tube. 4being downwardly movable in respect: to said shell,.and a lower part, including a gas delivery nipple supported dire ltly below said mixing tube but independently ther-col', said lower part being movable in re speci: to the upper part, whereby the shell or mixing tube may be removed trom the supporting ring.

17. A burner, comprising an upper part, including a supporting ring, a. shell carried thereby, a mantle support, and a mixing tube carried by said shell, said shell heilig downwardly removable in respect: to said ring, and said mixing tube being downwardly movable in respect to said shell, and a lower part, including a gas delivery nipple supported directly below said mixing tube but independently thereof, said lower part; being laterally movable out of the path ol? the downward movement ot the shell and mixing tube.

18. A gas burner, comprising a supporting ring, a mixing tube supported within said rin a gas delivery nipple supported directly below said mixing tube but entirely .independently thereof, and means carried by said nipple and longitudinally movable in relation thereto for con trolling the size of the air inlet opening to said mixing tube.

1t). A gas burner, comprising a mixing tube, a mantle and mantle support adjacent the upper end thereof, means for supporting said mixing tube, whereby it may be removed from beneath the mantle and mantle support, a gas delivery nipple supported directly below said mixing` tube, means whereby the nipple may be moved out of the downward path of said mixing tube, and an air regulator carried by said nipple and coperating with the lower part of said mixing tube for controlling the air inlet opening thereto.

20. A gas burner, comprising an open-ended mixing tube, a gas delivery nipple normally supported directly below said tube but movable out of alinement therewith, and an air regulator comprising a conical disk carried by said nipple and movable longitudinally thereof for closing or partially closing the end of' the mixing tube.

21. In combination, a fixture, a turning plug mounted therein, a gas delivery conduit rigidly secured to said turning plug, a gas delivery nipple carried by said conduit, a supporting nipple carried by said conduit, a supporting ring rigidly secured to said fixture, a shell carried by said ring and downwardly removable therefrom, a mixing tube carried by said shell and downwardly removable therefrom, a mantle support and mantle carried by said shell adjacent the upper end of said mixing tube, a screen carried by the upper end of said mixing tube, and an air regulator carried by said nipple independently of the mixing tube but relatively movable in respect thereto.

22. A gas burner, comprising an annular support, a Shell carried by and extending through said support and removable from the under side thereof, said shell and support being provided with bayonet connections for securing them together, and locking means for preventing the accidental displacement of the shell.

23. In combination, a supporting ring, a shell extend` ing through said ring and having a cylindrical surface in Contact therewith, said shell being provided with bayonet slots adjacent said ring, and screw studs extending inward` from said ring and adapted to pass through said slots, said screw studs being provided with enlarged inner ends adapted to contact with the inner surface of the shell and prevent accidental unlocking of the bayonet joint.

24. A gas burner, comprising a supporting ring, a shell extending through said ring and having a cylindrical surface in contact therewith, a head on said shell adapted to contact with the lower edge of the ring and limit the upward movement of the shell, said shell being provided with bayonet slots in its cylindrical portion, screw studs Carried by said ring and adapted to engage in the bayonet slots of the shell fr supporting the latter, washers secured to the inner ends of said screw studs and adapted to contact with the inner surface of the shell for preventing the accidental unlocking of the bayonet connections, and a mixing tube detachably secured to said shell and remov able from th'e under side thereof.

In testimony whereof I have signed my name to this specication in the presence of two subscribingl witnesses.

GEORGE S. ANDREWS.

Witnesses v L. P. WALKER, A. J. LYONs. 

